Identify Motherboard Parts And Their Functions Removable Disk Drives. Like most laptops some all in one desktop computers are characterized by an inability to customize or upgrade internal components as the systems cases do not provide convenient access to upgradable components and faults in certain aspects of the hardware may require the entire computer to be replaced regardless of the health of its remaining components There have been exceptions to this the monitor portion of HP s Z workstation can be angled flat and opened like a vehicle hood for access to internal hardware.

High resolution CRT displays were developed for the specialized military industrial and scientific applications but they were far too costly for general use Some of the earliest home computers such as the TRS and Commodore PET were limited to monochrome CRT displays but color display capability was already a standard feature of the pioneering Apple II introduced in and the specialty of the more graphically sophisticated Atari introduced in